Regulatory Update in Belgium: Q4 2025

Belgium';s regulatory landscape shifted meaningfully in the final quarter of the year, with legislative activity spanning corporate governance, employment law, data protection enforcement, and tax compliance. For international businesses operating in or entering Belgium, these changes carry direct practical consequences - from revised filing obligations to updated thresholds and new enforcement priorities. This guide summarises the most significant developments in belgium regulatory 2025 activity during Q4, explains what changed and why it matters, and outlines the steps businesses should take in response.

Belgium';s Companies and Associations Code (Wetboek van vennootschappen en verenigingen, or WVV) continued to evolve during Q4. Amendments introduced in the closing months of the year tightened disclosure requirements for beneficial ownership, requiring companies to update their Ultimate Beneficial Owner (UBO) register entries within tighter timeframes following any change in ownership structure. The UBO register, maintained by the Federal Public Service Finance, is now subject to more frequent audits, and discrepancies between the register and actual ownership arrangements are being treated as compliance failures rather than administrative oversights.

Practically, this means that any restructuring - including share transfers, new investor rounds, or changes to voting arrangements - must be reflected in the UBO register promptly. A common mistake among foreign-owned Belgian subsidiaries is treating UBO updates as a back-office formality to be handled at year-end. Belgian authorities have made clear that this approach is no longer acceptable. Companies that fail to update within the prescribed window face administrative fines, and repeat non-compliance can trigger enhanced scrutiny from the Financial Intelligence Processing Unit (CTIF-CFI).

Directors of Belgian entities should also note that the WVV amendments reinforced the personal liability framework for directors who approve transactions without adequate documentation of the decision-making process. Board minutes must now reflect not only the outcome of decisions but also the deliberative process, particularly for transactions with related parties.

The Q4 period brought notable updates to Belgian employment regulation, particularly in the areas of wage indexation, remote work formalisation, and the status of platform workers. Belgium';s automatic wage indexation mechanism - one of the most comprehensive in the European Union - triggered adjustments across multiple sectors during this period, with the health index reaching levels that activated contractual escalation clauses in a significant number of collective bargaining agreements.

Employers operating under joint committee agreements (paritaire comités) should verify whether their sector-specific agreements were updated during Q4. Failure to apply the correct indexed wage can expose employers to back-pay claims and social security surcharges. Many international employers underestimate how sector-specific Belgian labour law is: the applicable joint committee determines not only wages but also notice periods, end-of-year bonuses, and supplementary leave entitlements.

On remote work, the National Labour Council (Conseil National du Travail / Nationale Arbeidsraad) issued updated guidance clarifying the obligations of employers whose staff work remotely on a structural basis. Structural telework - defined as remote work that is regular and predictable rather than occasional - must be governed by a written agreement that addresses equipment provision, cost reimbursement, and the right to disconnect. Employers who had informal arrangements in place were given a defined window to formalise these agreements. In practice, founders should consider auditing all remote work arrangements to ensure they meet the current formal requirements, as labour inspectorate enforcement activity increased during Q4.

Platform workers received additional protections under measures transposing the EU Platform Work Directive into Belgian law. Workers who meet the criteria for employment - assessed against a rebuttable presumption framework - are now entitled to employment status unless the platform can demonstrate otherwise. This reversal of the burden of proof is a significant shift for gig economy operators and digital marketplace businesses active in Belgium.

The Belgian Data Protection Authority (Autorité de protection des données / Gegevensbeschermingsautoriteit, or APD/GBA) intensified its enforcement activity during Q4, with a particular focus on three areas: cookie consent mechanisms, data retention practices, and the handling of employee data.

On cookies, the APD/GBA issued updated guidance following a series of decisions in which it found that pre-ticked boxes, bundled consent, and consent walls did not meet the standard required under the General Data Protection Regulation (GDPR). Businesses operating Belgian-facing websites should treat this guidance as binding in practice, even where it goes beyond the literal text of the GDPR, because the APD/GBA has demonstrated a willingness to impose fines for non-compliant consent flows. A non-obvious requirement is that consent must be as easy to withdraw as to give - a standard that many cookie banners still fail to meet.

Data retention was the second enforcement priority. The APD/GBA signalled that it would scrutinise retention schedules more closely, particularly for HR data, customer records, and marketing databases. Belgian law does not prescribe a single universal retention period; instead, retention must be justified by reference to the specific purpose for which data was collected. Businesses that retain data "just in case" without a documented legal basis are at elevated risk.

The third area - employee data - is particularly sensitive in Belgium because of the strong role of works councils (conseils d';entreprise / ondernemingsraden) in overseeing the introduction of monitoring technologies. Any new system that processes employee data - including productivity monitoring software, access control logs, or communication surveillance tools - must be subject to prior information and consultation with the works council where one exists. Many underestimate the lead time this process requires: consultation is not a formality, and works councils have the right to request expert assistance, which can extend the timeline by several weeks.

If your organisation is navigating data protection compliance or employment monitoring questions in Belgium, contact info@vlolawfirm.com. We can help structure the setup correctly the first time.

Belgian tax compliance saw significant developments during Q4, driven by both domestic legislative action and the continued implementation of international frameworks agreed at OECD level.

On transfer pricing, the Belgian tax administration (Service Public Fédéral Finances / Federale Overheidsdienst Financiën) updated its administrative guidance on the documentation requirements for intra-group transactions. Belgian entities that are part of multinational groups above the relevant thresholds are required to maintain a master file, a local file, and - where applicable - a country-by-country report. The updated guidance clarified the standard of contemporaneous documentation: transfer pricing files must be prepared before the filing deadline for the corporate income tax return, not assembled after the fact in response to an audit query. A common mistake is treating transfer pricing documentation as a reactive exercise; Belgian auditors now treat the absence of contemporaneous files as an indicator of risk.

Belgium';s implementation of the OECD Pillar Two global minimum tax framework - the 15% minimum effective tax rate for large multinational groups - moved into its operational phase during Q4. Belgian entities that are constituent entities of groups with consolidated revenues above the relevant threshold are subject to the qualified domestic minimum top-up tax (QDMTT) and must file the relevant GloBE information return. The Federal Public Service Finance issued practical guidance on the filing process, including the treatment of deferred tax assets and the interaction with Belgium';s notional interest deduction regime, which has historically reduced the effective tax rate for many Belgian entities. Groups that previously relied on the notional interest deduction to manage their effective rate should model the Pillar Two impact carefully.

VAT saw targeted adjustments during Q4, including changes to the rules governing the VAT treatment of certain digital services and clarifications on the place-of-supply rules for complex service arrangements. Belgian VAT law is administered by the VAT Administration (Administration de la TVA / BTW-administratie), and businesses with cross-border service flows should verify that their VAT positions remain correct in light of the updated guidance. The margin for error is limited: Belgian VAT assessments carry interest charges that accrue from the date the tax became due, not from the date of assessment.

Belgium';s financial regulatory environment saw updates from both the National Bank of Belgium (Banque Nationale de Belgique / Nationale Bank van België, or NBB) and the Financial Services and Markets Authority (Autorité des services et marchés financiers / Autoriteit voor Financiële Diensten en Markten, or FSMA) during Q4.

The NBB issued updated supervisory expectations for credit institutions and payment service providers on the management of financial crime risk. The guidance placed particular emphasis on the adequacy of transaction monitoring systems and the quality of suspicious transaction reports filed with the CTIF-CFI. Institutions that rely on rule-based monitoring without periodic calibration against current typologies were identified as a supervisory concern. In practice, founders should consider whether their compliance technology is being updated frequently enough to reflect current money laundering and fraud patterns.

The FSMA focused its Q4 activity on the marketing of complex financial products to retail investors and on the supervision of crypto-asset service providers (CASPs) under the EU Markets in Crypto-Assets Regulation (MiCA). Belgium';s implementation of MiCA moved forward during this period, with the FSMA publishing its registration and authorisation procedures for CASPs. Businesses that provide crypto-asset services in or from Belgium and have not yet assessed their MiCA obligations should treat this as an urgent compliance priority. The transitional provisions under MiCA are time-limited, and operating without the required registration or authorisation exposes businesses to enforcement action.

Anti-money laundering obligations were also tightened for non-financial obliged entities - including real estate agents, notaries, accountants, and company service providers - through updated guidance issued under the Belgian Anti-Money Laundering Law (Loi du 18 septembre 2017 relative à la prévention du blanchiment de capitaux). The updated guidance clarified the customer due diligence requirements for higher-risk clients and the circumstances in which enhanced due diligence is mandatory. Obliged entities that have not reviewed their AML procedures in the past twelve months should do so as a matter of priority.

For assistance with financial services compliance or AML obligations in Belgium, reach out to info@vlolawfirm.com. We can assist with documents, filings, and regulatory assessments.

What are the most immediate compliance actions Belgian companies should take following Q4 regulatory changes?

The most time-sensitive actions relate to UBO register accuracy, transfer pricing documentation, and remote work agreements. Companies should verify that their UBO register reflects current ownership and control structures, ensure that transfer pricing files are contemporaneous rather than retrospective, and formalise any structural telework arrangements that are currently governed by informal understanding. For regulated financial entities, reviewing transaction monitoring systems and MiCA compliance status should also be treated as immediate priorities. The cost of remediation after an audit or inspection is typically far higher than the cost of proactive compliance.

How long does it typically take to implement the required changes, and what are the approximate costs involved?

Timelines vary significantly by measure. UBO register updates can generally be completed within a few days once the relevant information is assembled. Formalising remote work agreements typically takes two to four weeks, particularly where works council consultation is required. Transfer pricing documentation for a mid-sized group can take several weeks to prepare properly. Costs depend on the complexity of the organisation: professional fees for a comprehensive compliance review typically start from the low thousands of EUR for straightforward structures and rise substantially for complex multinational arrangements. State filing fees for UBO updates are modest, but the cost of non-compliance - including fines and reputational risk - is considerably higher.

Should a foreign company entering Belgium now choose a different structure given the new regulatory environment?

The choice of entity remains primarily driven by operational and tax considerations rather than by the Q4 regulatory changes specifically. A besloten vennootschap (BV) - the Belgian private limited company - remains the most common vehicle for foreign investors, offering flexible capital rules and limited liability. However, the tightened UBO disclosure requirements and the Pillar Two framework mean that group structures involving Belgian entities should be reviewed for compliance before implementation rather than after. Branches of foreign companies are subject to different disclosure and tax rules and may be appropriate in specific circumstances. The regulatory changes do not fundamentally alter the entity choice calculus, but they do raise the compliance baseline that any structure must meet.

The Q4 regulatory developments in Belgium reflect a broader trend toward stricter enforcement, more granular documentation requirements, and the progressive implementation of EU-level frameworks at the national level. Businesses operating in Belgium - whether through subsidiaries, branches, or cross-border service arrangements - face a compliance environment that rewards proactive preparation and penalises reactive responses. The changes across corporate governance, employment, data protection, tax, and financial services are interconnected: a restructuring that triggers UBO updates may also have transfer pricing and employment implications.

VLO Law Firms advises international clients on regulatory compliance and corporate matters in Belgium. We can assist with UBO register filings, employment law formalisation, data protection assessments, transfer pricing documentation, and financial services regulatory matters. To request a consultation, contact: info@vlolawfirm.com